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\centering
\begin{tabular}{lcccccccccccc}
   $\textbf{Panel C: phosphorus}$\\
   IHS restored wetland (acres) & -0.001        & -0.003        & -0.001        & 0.001         & -0.006        & 0.002         & -0.004$^{**}$ & -0.012$^{***}$ & 0.002         & -0.002        & -0.004        & 0.0006\\   
                                & (0.007)       & (0.007)       & (0.007)       & (0.002)       & (0.005)       & (0.002)       & (0.002)       & (0.004)        & (0.002)       & (0.004)       & (0.005)       & (0.005)\\   
    \\
   Observations                 & 248           & 248           & 248           & 2,031         & 2,031         & 2,031         & 4,489         & 4,489          & 4,489         & 1,940         & 1,940         & 1,940\\  
   Adjusted R$^2$               & 0.46546       & 0.49827       & 0.46711       & 0.30714       & 0.33627       & 0.30920       & 0.30525       & 0.33400        & 0.41695       & 0.50019       & 0.51668       & 0.53262\\  
                                &               &               &               &               &               &               &               &                &               &               &               & \\  
   Ever treated                 & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$   & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$\\   
   Controls                     & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$   & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$\\   
                                &               &               &               &               &               &               &               &                &               &               &               &  \\  
   HUC8 fixed effects           & $\checkmark$  & $\checkmark$  &               & $\checkmark$  & $\checkmark$  &               & $\checkmark$  & $\checkmark$   &               & $\checkmark$  & $\checkmark$  &  \\  
   HUC12 fixed effects          &               &               & $\checkmark$  &               &               & $\checkmark$  &               &                & $\checkmark$  &               &               & $\checkmark$\\   
   Year fixed effects           & $\checkmark$  &               & $\checkmark$  & $\checkmark$  &               & $\checkmark$  & $\checkmark$  &                & $\checkmark$  & $\checkmark$  &               & $\checkmark$\\   
   HUC4 x year fixed effects    &               & $\checkmark$  &               &               & $\checkmark$  &               &               & $\checkmark$   &               &               & $\checkmark$  &  \\  
   Month fixed effects          & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$   & $\checkmark$  & $\checkmark$  & $\checkmark$  & $\checkmark$\\   
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